The correct answer should be A) Social divide
Heathcliff was a poor boy who was adopted and never had proper schooling or etiquette while she was always leaning towards marrying someone rich and educated. Unfortunately for her, when he came back to the Heights that's exactly what he became so her life became much harder.
<span>A. We need to appreciate every moment of our lives.
The speaker is measuring the amount of life he has left in terms of how many springs he will get to see. He realizes that he does not have much time left, so he makes a point of going around to see all of the cherry blossoms that he can. </span>
The definition of <em>i</em>t is...
used to refer to a thing previously mentioned or easily identified.
Hope you weren't looking for anything more specific.
As you know, it's pretty obviously used in sentences, so thanls for the free points :)
The answer that seems most likely is D